CN208967277U - 7 cun of hair casing metal sealing devices - Google Patents
7 cun of hair casing metal sealing devices Download PDFInfo
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- CN208967277U CN208967277U CN201821727445.XU CN201821727445U CN208967277U CN 208967277 U CN208967277 U CN 208967277U CN 201821727445 U CN201821727445 U CN 201821727445U CN 208967277 U CN208967277 U CN 208967277U
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Abstract
The utility model discloses a kind of 7 cun of hair casing metal sealing devices, including quoit ontology and lower support ring, the quoit ontology to be located at the upper surface of lower support ring；The longitudinal cross-section of the quoit ontology is triangular in shape, and the top of the quoit ontology is equipped with annular and helps sealing groove, and the annular helps the longitudinal cross-section of sealing groove U-shaped；The lower inner wall of the quoit ontology is equipped with the deformation-compensated slot of annular, and the deformation-compensated slot extends along the diametrical direction of quoit ontology to outer wall direction, and the longitudinal cross-section of the deformation-compensated slot is inverted u-shaped；The inner wall structure cylindrical of the quoit ontology, outer wall is conical structure, and the seal convexity of twice annular is respectively equipped on the inner and outer wall of the quoit ontology.The utility model sealed reliable, structure are simple and convenient to operate, are easily-deformable, in-site installation is without adaptation, save the time, can improve working efficiency, reduce cost.
Description
Technical field
The utility model relates to petroleum drilling and mining bobbin seal technical fields, and in particular to a kind of 7 cun of hair casing metals sealing
Device.
Background technique
In API6A(American Petroleum Institute (API), American Petroleum Institute) in standard, important is adopted
Oil or gas production wellhead require to provide a kind of reliable sealed connection in installation exercise, between carrier and carrier.
For general well head, rubber seal is mostly used between carrier and carrier greatly.However rubber seal cannot in low temperature and
It is used in high temperature, low temperature will appear embrittlement, and high temperature will appear softening, and rubber seal long-time service will appear aging and mistake
Effect.
For being applied to the high temperature of -60 DEG C of low temperature below, 350 DEG C or more, containing the severe well head of the operating conditions such as H2S, carrier
It just needs between carrier using expensive metal sealing.7 cun of hair sleeve outers of API standard have the tolerance of 2.7mm, generally
It can prepare 1 outer metal sealing and 3 interior metal sealings to cover the tolerance of 7 cun of hair casing 2.7mm.The excitation of metal o-ring
Two support rings up and down can also be used, upper and lower support ring transfers the pressure to metal o-ring excitation achieved above, such as Fig. 1 and
Shown in Fig. 2, not only installation is bothered in this way, but also increases cost.7 cun of casings according to using are needed to fit when in-site installation
With interior metal o-ring, 1 suitable interior metal o-ring is selected from 3 interior metal o-rings, seriously affects the peace of well head
The phenomenon that filling efficiency, and will cause waste 2 inner seal rings of residue, not only reduces working efficiency, but also increase into this way
This.
Summary of the invention
The purpose of this utility model aiming at defect of the existing technology, provide a kind of sealed reliable, structure it is simple,
Easy to operate, easily-deformable, in-site installation saves the time, can improve working efficiency, reduce by 7 cun of hair casings of cost without adaptation
Metal sealing device.
The technical solution of the utility model is: 7 cun of hair casing metal sealing devices, including quoit ontology and lower support
Ring, the quoit ontology are located at the upper surface of lower support ring；
The longitudinal cross-section of the quoit ontology is triangular in shape, and the top of the quoit ontology is equipped with annular and helps sealing groove,
The annular helps the longitudinal cross-section of sealing groove U-shaped；The lower inner wall of the quoit ontology is equipped with the deformation-compensated slot of annular,
The deformation-compensated slot extends along the diametrical direction of quoit ontology to outer wall direction, and the longitudinal cross-section of the deformation-compensated slot is in
Inverted U；
The inner wall structure cylindrical of the quoit ontology, outer wall is conical structure, the quoit ontology it is interior
The seal convexity of twice annular is respectively equipped on wall and outer wall.
Preferably, the taper of the cone shaped outer wall of the quoit ontology is consistent with the taper of four-way junction of casing inner wall.
Preferably, the inner wall of the quoit ontology is equipped with seal convexity ring in the twice being parallel to each other, the metal
The outer wall of circle ontology is equipped with the twice external seal protruding ring being parallel to each other.
Preferably, wherein one of interior seal convexity ring external seal protruding ring with together with is separately positioned on annular and helps the two of sealing groove
Side.
Compared with prior art, have the advantage that structure is simple, easy to process and manufacture；It is not necessarily to
Prepare multiple sealing rings, in-site installation is simply not necessarily to be adapted to, and saves the set-up time, saves cost；Only need the support of a bottom
Ring is not necessarily to upper support ring, reduces installation steps；It can be used in the field of API6A, may be alternatively used for other needing metal to gold
Belong to the field of sealing；U-shaped by top helps sealing groove to play the role of pressure to help envelope, make the protrusion of metal sealing under the pressure of fluid
It is even closer with the cooperation of casing；When being pressurized, pass through the seal convexity on outer wall and inner wall, it is easier to deform, thus not
It needs to increase sealing of the bigger bolt torque to excite metal o-ring, meets the application that API6A specification recommends bolt；Lower part
The deformation-compensated slot of inverted U can play the role of adjust compensation Carrier diameters direction and short transverse scale error, sealing
After excitation, though under tension, bending, compression and harsh operating condition, also need not periodically retorque and nut, be applicable in
In -60 DEG C of low temperature below and it is used for 350 DEG C or more of hot environment.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model background technique；
Fig. 2 is the structure sectional view of the metal o-ring of the utility model background technique；
Fig. 3 is the structural schematic diagram of the utility model；
Fig. 4 is the scheme of installation of the utility model；
In figure: 1. quoit ontologies, 2. lower support rings, 3. annulars help sealing groove, 4. deformation-compensated slots, seal convexity in 5.
Ring, 6. external seal protruding rings, 7. four-way junction of casing, 8.7 cun of casings.
Specific embodiment
Here is that the present invention will be further described in conjunction with the accompanying drawings and embodiments.
Referring to shown in Fig. 3 and Fig. 4,7 cun of hair casing metal sealing devices, including quoit ontology 1 and lower support ring 2, gold
Belong to the upper surface that circle ontology 1 is located at lower support ring 2.
The longitudinal cross-section of above-mentioned quoit ontology 1 is triangular in shape, and the top of quoit ontology 1 is equipped with annular and helps sealing groove 3,
Annular helps the longitudinal cross-section of sealing groove 3 U-shaped, and the annular that fluid enters top helps sealing groove 3, the pressure extrusion U-type groove two sides of fluid
Wall realizes that pressure helps the effect of envelope.
The deformation-compensated slot 4 of annular is equipped in the lower inner wall of quoit ontology 1, deformation-compensated slot 4 is along quoit sheet
The diametrical direction of body 1 extends to outer wall direction, and the longitudinal cross-section of deformation-compensated slot 4 is inverted u-shaped；When the bolt of flange connections is twisted
When tight, lower support ring 2 is pressurized, and transfers the pressure on quoit ontology 1, and 1 stress deformation of quoit ontology, this is deformation-compensated
Slot 4 can play the role of adjusting the scale error in compensation Carrier diameters direction and short transverse, can thus use a gold
Belong to sealing ring and meets installation requirements.
The inner wall of quoit ontology 1 structure cylindrical, outer wall are conical structure, the inner wall of quoit ontology 1 and outer
The seal convexity of twice annular is respectively equipped on wall.Wherein, it is equipped on the inner wall of quoit ontology 1 in the twice being parallel to each other
Seal convexity ring 5 is equipped with the twice external seal protruding ring 6 being parallel to each other on the outer wall of quoit ontology 1.It is wherein interior close together
The envelope external seal protruding ring 6 with together with of protruding ring 5 is separately positioned on the two sides that annular helps sealing groove 3, in this way as the pressure extrusion U of fluid
When type groove two sidewalls, acts directly on interior seal convexity ring 5 and external seal protruding ring 6, play the role of helping envelope.
The taper of the cone shaped outer wall of above-mentioned quoit ontology 1 is consistent with the taper of 7 inner wall of four-way junction of casing.Work as method in this way
When the bolt of blue junction is tightened, quoit ontology 1 squeezes under the action of lower support ring 2 and four-way junction of casing 7 with taper
It deforms, seal convexity ring 5 and 7 cun casing 8 realizes sealing, the twice external seal protruding ring 6 and casing of outer wall in the twice of inner wall
Four-way 7 realizes sealing.
When the bolt of flange connections is tightened, lower support ring 2 is pressurized, and transfers the pressure on quoit ontology 1, metal
1 stress deformation of ontology is enclosed, seal convexity ring 5 and 7 cun casing 8 realizes sealing in the twice of inner wall, and the twice external seal of outer wall is convex
It plays ring 6 and four-way junction of casing 7 is realized and sealed.Meanwhile fluid enters the annular on top and helps in the U-shaped cavity of sealing groove 3, the pressure of fluid is squeezed
Realize that pressure helps the effect of envelope in pressure U-shaped cavity two sidewalls.When lower support ring 2 is pressurized, and transfer the pressure on quoit ontology 1,
The deformation-compensated slot 4 of 1 stress deformation of quoit ontology, lower part deforms simultaneously, which can play adjusting and mend
The effect of the scale error of Carrier diameters direction and short transverse is repaid, installation need can be thus met with a metal o-ring
It asks.
The utility model only needs the tolerance that can cover 7 cun of hair casing 2.7mm, without preparing multiple sealings
Circle, in-site installation are simply not necessarily to be adapted to, and save the set-up time, save cost.The support ring that a bottom is only needed when use, is not necessarily to
Upper support ring reduces installation steps.Main function is to provide and keeps sealing between metal, so the metal o-ring not only may be used
For in the field of API6A, may be alternatively used for other fields for needing metal to metal seal.The annular on top helps sealing groove 3 to have
Pressure helps the effect of envelope, and the cooperation of the protrusion and casing that make metal sealing under the pressure of fluid is even closer.
7 cun of hair casing metal sealing devices are not needed to provide particular channel as API gasket ring and can be sealed, so
Structure is simple, easy to process and manufacture.There is the annular protrusion realized and sealed on its outer wall and inner wall, so being easier to when being pressurized
In deformation, the sealing that so there is no need to increase bigger bolt torque to excite metal o-ring meets API6A specification and recommends
The application of bolt.The deformation-compensated slot 4 of lower part can play the scale error for adjusting compensation Carrier diameters direction and short transverse
Effect.Many lower than material hardness used in seal carrier of material hardness used in the utility model, and adopt
Special construction, so when in use, the sealing surface of seal carrier will not be destroyed.7 cun of hair casing metal sealing device excitations
It afterwards, also need not regular retorque and nut even if under tension, bending, compression and harsh operating condition.Will not make by
The support strength of sealing reduces.The design space of itself will not be limited and influenced by API6A flange bolt hole.It may be implemented
The sealing of 15000Psi pressure.
316 SS stainless steels and the manufacture of 825 anti-corrosive alloy materials can be selected in 7 cun of hair casing metal sealing devices, can by with
In more a wide range of field, it is particularly used to hydrogen sulfide, carbon dioxide corrosion working condition, meets API6A and NACE MR 0175
Code requirement.7 cun of hair casing metal sealing devices can be used for -60 DEG C of low temperature below and be used for 350 DEG C or more of high temperature.
The utility model is not limited to above-mentioned embodiment, within the knowledge of those skilled in the art,
The present invention can also be realized without departing from the purpose of the present invention. Make a variety of changes, and the content after variation still falls within the utility model
Protection scope.
Claims (4)
1.7 cun of hair casing metal sealing devices, it is characterised in that: including quoit ontology and lower support ring, the quoit sheet
Body is located at the upper surface of lower support ring；
The longitudinal cross-section of the quoit ontology is triangular in shape, and the top of the quoit ontology is equipped with annular and helps sealing groove, described
Annular helps the longitudinal cross-section of sealing groove U-shaped；The lower inner wall of the quoit ontology is equipped with the deformation-compensated slot of annular, described
Deformation-compensated slot extends along the diametrical direction of quoit ontology to outer wall direction, and the longitudinal cross-section of the deformation-compensated slot is in U
Type；
The inner wall structure cylindrical of the quoit ontology, outer wall is conical structure, the inner wall of the quoit ontology and
The seal convexity of twice annular is respectively equipped on outer wall.
2. 7 cun of hair casing metal sealing devices according to claim 1, it is characterised in that: the circle of the quoit ontology
The taper of conical outer wall is consistent with the taper of four-way junction of casing inner wall.
3. 7 cun of hair casing metal sealing devices according to claim 1, it is characterised in that: the quoit ontology it is interior
Wall is equipped with seal convexity ring in the twice being parallel to each other, and the outer wall of the quoit ontology is equipped with outside the twice being parallel to each other
Seal convexity ring.
4. 7 cun of hair casing metal sealing devices according to claim 3, it is characterised in that: wherein one of interior seal convexity
Ring external seal protruding ring with together with is separately positioned on the two sides that annular helps sealing groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821727445.XU CN208967277U (en) | 2018-10-24 | 2018-10-24 | 7 cun of hair casing metal sealing devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821727445.XU CN208967277U (en) | 2018-10-24 | 2018-10-24 | 7 cun of hair casing metal sealing devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208967277U true CN208967277U (en) | 2019-06-11 |
Family
ID=66761069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821727445.XU Active CN208967277U (en) | 2018-10-24 | 2018-10-24 | 7 cun of hair casing metal sealing devices |
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| CN (1) | CN208967277U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109027460A (en) * | 2018-10-24 | 2018-12-18 | 山东科瑞井控系统制造有限公司 | 7 cun of hair casing metal sealing devices |
-
2018
- 2018-10-24 CN CN201821727445.XU patent/CN208967277U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109027460A (en) * | 2018-10-24 | 2018-12-18 | 山东科瑞井控系统制造有限公司 | 7 cun of hair casing metal sealing devices |
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| GR01 | Patent grant | ||
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| CP01 | Change in the name or title of a patent holder |
Address after: 257000 Dongying District Shengli Industrial Park, Dongying City, Shandong Province, south of South 2 Road and east of West 6 Road Patentee after: Weifei Marine Equipment Manufacturing Co., Ltd. Address before: 257000 Dongying District Shengli Industrial Park, Dongying City, Shandong Province, south of South 2 Road and east of West 6 Road Patentee before: Shandong Kerui Well Control System Manufacturing Co., Ltd. |